Knit fabric



Jan. s ,1926. 1,568,693

R. ROTHMAN KNIT FABRIC l Filed Dec. 26, 1924 2 Sheets-Sheet l lin. s1926. y 1,568,693 j R. ROTHMAN v KNIT FABRIC' Filed Deo.` 26, 1924, 2sheets-sheet 2 )mmmmm @www I @fi/EQ Patented Jan, 5, 1926. i

` y, `Realizar ao'rirrrAN, or BROOKLYN, NEW ironie4 xNIrrannte.

i ``Application led December'26,1924. Serial No. 757,994.

Taal] whom tejen/,Ly 0011.061112:

.Be-it known that I, Ronnn'r Ro'ruMaN.

ak native-of .Russia (who has appliedV for citizenship .ot-the UnitedStates), and a 1:5 resident4 :of lBrooklyn, county of Kings, State" of.New York, have invented certain new and usetullmprovements,in KnitFabrics, of which the following is a, specification. r f

The object of the present invention is to produce a knitfabric-.in whichribs are produced' extending longitudinally. between which plain: orother form of knit fabric is interposed,A yand which ribs will have ya.thickness ysubstantially triple that of-the knit fabric: beyondthe rib,and which ribs will be comparatively narrow and comprise a` continuousWale'.r l n In the accompanying drawing showing one, embodiment of'- myinvention, Figure 1 shows a'y portion of the fabric somewhat enlarged.

Fig.2,is an edgefyiew of the fabric as shown in Fig. 1.

Fig. 3 4is a somewhat diagrammatic view of the'method of knitting withthe loops obviously shown in the o pen position.

- Fig. LLisa similarpview with the'loops correspondingr more nearly tothe structure o:tFig.1.w` v a This invention l'consists essentially of aknit fabric having atintervals vpreferably remote, a continuous Waleformed of multiplethreads. such as three or more threads, each of whichis taken from the single course-thread'fin the fabric on each sidefofsuch Wale, extending between these enlarged wales. As` shown herein theband of plain or ordinary knit extends between the multi le threadwales,but any desired form oa it may be interposed between these multiplethread Wales, lor might lbe brought 'adjacent'.

of multlple -thread- Wales indicated generally by 4, that-fare. lformedout of three courses of the single-thread, and .indicated byrl, 2 and3.1- On each' side ofthe multiple ,walefloo are plain loops 5' and 6,each i compose of. .1 az sm lei thread lIt will be seen that the threa s1, 2 and 3 pass downwardlyr-throughr the .loops 10, 11 and 12 're- `sctively, as at 7, 8 and 9, and thenpass" t rough ther-mltiple' threadloop 40 formed similarly of three vthreads which three threads then passupwardly as at 13nd 3.-'of thedrawing I show a series y tainin form loop4, where they engage two multiple thread loo'ps 14 and `15; thence thesethree threads pass-downwardly .at 16, and again go through themultiplethread loop 40, passupwardly through the side loops 17, 18. and 19respectively and continue on` the left as the same threecourse'threads 1. 2 and 3. It will be seen that the multiple .threadloop 40 is formed in precisely the same manner'by the course threads21a,

122 and 23, that pass throughvthe similar lower loop 20 and comingupwardly engage the loop portions formed by thc multiple threads 13 and16 at their Ilower portions. From this arrangement it follows that themultiple4 loops in the wales will Aeach be three times the length of oneloop on each side and this Will extend for the 'distance of three sideloops. In the same manner four threads mightbe used, or more to formmultiple -thread loops that might extend for the distance of four courseloops.

The arrangement in Fig. 3 is somewhat theoretical; as in theproductionof this fabric on the usual circular knitting machine Will produce vtheeffect las indicated in Fig. 1. The method followed is simply to ta epredetermined needles spaced the same number of needles apart, suchasleach y seventh needle, and then arrange thefsinkers or othermechanism, whe1eby"'thesc PATENT. Q'Iyv-pjlyCE1.

needles in two successive-courses of the Wale i This will produce v sionthereon, as well as rthejtwo-"knit off,

and naturally the ladjacent -loop wales-fare drawn upon to `'supply 'theextra thread neededf This will have thel generall eilect of makingtheadjacent wales ou each side of the multiple wales, narrow and contract-yed, and the intermediate Wale loops will be Wider than thenormalloop'intheplain knit, :or onewithout the multiple Wales; asindicated in Fig. 1.v Here the multiple 'Wale other Wale loops vbe'fondthe" Wale? loops@ con# the multi -evthread Wales.\*1thas been ound thatt 's brinuging to ther the three the m tipleoopsv will make thethickness or rib at these portions three times the normal thickness ofthe fabric as knitbetween these ribs. This is further assisted by thenarrow and tight knit Wales adjoining the multiple Wale on each side,whichv braces the multiple Wale loops and maintains this effect.

By this operation, various artistic effects can be produced, bydifferent designs of the fabric between thel multiple w-ales, such asthe ordinary rib formed by reversing the loops alternately, also threedifferent colored threads can be used in the successive courses, andproduce loops in the plain courses between the multiple thread Wales inalternate courses, while. each multiple thread loop would have threethreads brought together and a contrasting effect would result. Also thethree threads in one course might by any one color, and the neXt threethreads in a dierent color, that would show the ribs in different.colors in different portions.

Another very benecial result of this fabric is that it ossesesexceptional strength lengthwise of t e ribs, and cannot stretch or sagin this direction. Also the lateral sag loops form of a knit Wale,whereby is or stretch is reduced, .because the loops in the Wales arealready considerably stretched to produce the multlple thread ribs, andthe knit is comparatively tight.

The fabric as shown. in Fig. 4 is substantially as it is `produced inthe knitting machine. It is customary to treat such fab.- rics by acleaning operation which usually employs steam and sometimes soa j ordeterge'nts. These operations will ave the effect of causing the ribsadjoining the multiple thread Wale that are tightly drawn to somewhatrelax and this operation Will cause wider loops between the rib portionto receive more thread and that will somewhat close up and impart morenearly uniform appearance to the fabric.

What I claim is:

1. In a knit fabric, a Wale of multiple threads in each successive loop,such Wale being interposed between wales, in which each group of threeadjacent course threads 'on each side are brought together to forni aseries of successive multiple thread loops in the form of a vknit Wale.j

2. In a knit fabric, a Wale in Wlcl1o-tthe successive knit loops areeach composed Vof .three threads from three adjacent courses on eachside of the-Wale.

3. ia knit fabric, a Wale of multiple threadsgin each successive loop,such Wale bein interposed between plain knit wales, in W 'ch each ou ofthree adjacent course threads ou eac si e are brought together to form aseries of successive multiple thread produced a rib of triple thicknesscompared with the thickness of the plain knit Wales adjacent this Wale.

4. In a knit fabric, a needle Wale of multiple threads in eachsuccessive loop, such Wale being interposed between needle wales inwhich each group ofqthree adjacent course threads on each side arebrought to form a series of successive multiple thread loops in form ofa knit Wale, each said multi le thread Wale having the adjacent nee lewales on each side considerably narrower than the multiple Wale, and theneedle Wales beyond said narrow Wales being of sub'- stantially the samewidth as the said multiple thread Wale loops.

5. Ina knit fabric, a needle Wale of multiple threads in each successiveloop, such Wale being interposed between plain knit needlewales, inwhich each group of three adjacent course threads on each side arebrought together to form a series of successive multiple thread loops inthe form of a knit Wale, each said multiple thread Wale loop havin r theadjacent needle 'Wale loops on each side considerablyv narrower than themultiple Wale loop, and the needle Wale loops beyond said narrow walesbeing of substantially the same width as the said multiple thread Waleloops.

6. The method of producing a multiple thread Wale in a knit fabric,which consists in holding a thread on axpredet-ermined needle for twosuccessive courses, thereupon knitting these two course threads withalso the next and third successive coursethread olf the needle, to knitin the three threads together, in one loop, thereu on repeating theoperation for the fourth, fth and sixth courses on the same needle bylooping through the said triple thread loop just formed, and knittingolf again on the sixth course, and repeating the operation.

V7. The. method of reducing a multiple thread Wale 'in' a knlt fabric,which consists inholding the' thread on a predeter- 4mined `needleV` fortwo successive courses,

thereuponknitting these two course threads with alsojjthe 4next andthirdV successive coursethread Voff the needle, toknit in the threethreads together, thereu `on), repeating the operation for the fourth,fth and sixth courses -on the same needle byl looping through thel saidtriple -v thread loop just formed,`andiknitting olf on the sixth course,

the ,first thread that is floated across said predetermined needlebeinggiven a certain amount of slack to provideextra thread for themultiple loop..

Signed at New York, N. Y., ony December 23,1924. v

ROBERT-snowman.

